LIMS-1949: Use parentAutoProcProgramId field

[ndg63276]

JIRA ticket: LIMS-1949

Summary:

It is useful to be able to see a downstream processing job's upstream parent, but at the moment we use the "scaling_id" parameter in the ProcessingJobParameter table, which is a bit flaky. We now have an AutoProcProgram.parentAutoProcProgramId field, which is being populated from about 1st April 2026.

Changes:

• Re-route all calls to _lookup_autoproc to a new _lookup_parent_autoproc function, which uses the parentAutoProcProgramId field
• If no parent job is found, fall back to the old method, to avoid all pre-April 2026 jobs being broken
• Use a config variable to limit falling back to before a certain job, as from now on the parentAutoProcProgramId field should be populated
• Simplify the old method a little, Big EP was using the program_id instead of the scaling_id, but this seems not to be necessary

To test:

• Go to a recent data collection with lots of downstream processing jobs, eg /dc/visit/nt44198-3/id/22397399
• On each downstream job, click the "View Upstream" button, check it opens the Automatic Processing bar if needed and switches to the correct tab
• Go to an older data collection eg /dc/visit/nt44198-3/id/21167691, repeat the check
• Add the config variable with a low number eg

$max_appid_without_parent = 123;

• Repeat the check on the older data collection, it should stop working as you have now disallowed falling back to the old method
• Now set it to 119440820, and repeat the check on the older data collection, it should work again.